Audi TT (2007 year). Manual — part 138

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.

8J0-039080408

85

86

87

88

89

90

91

92

93

94

95

96

97

98

T26a/2

T20d/16

or/sw

0,35

J

431

B384

or/sw

0,35

J

533

or/sw

0,35

T20c/12

or/sw

0,35

J

527

B383

or/sw

0,35

T47a/23

J

250

•

✱

T26a/3

T20d/6

or/br

0,35

B391

or/br

0,35

J

533

or/br

0,35

T20c/11

or/br

0,35

J

527

B390

or/br

0,35

T47a/22

J

250

•

✱

ws = white

sw = black

ro

= red

br

= brown

gn

= green

bl

= blue

gr

= grey

li

= purple

ge

= yellow

or

= orange

rs

= pink

Control unit for headlight range control, CAN bus wiring

J250 Electronically controlled damping control unit

J431 Headlight range control, control unit

J527 Steering column electronics control unit

J533 Data bus diagnostic interface

T20c 20-pin connector, black, connector A, on steering column

electronics control unit

T20d 20-pin connector, black, on data bus diagnostic interface

T26a 26-pin connector, black, on headlight range control, control unit

T47a 47-pin connector, on electronically controlled damping control

unit

B383 Connection 1 (drive train CAN bus, high), in main wiring harness

B384 Connection 2 (drive train CAN bus, high), in main wiring harness

B390 Connection 1 (drive train CAN bus, low), in main wiring harness

B391 Connection 2 (drive train CAN bus, low), in main wiring harness

•

CAN bus (data wire)

*

with electronically controlled damping

Audi TT

Current Flow Diagram

No. 39 / 8

Edition 08.2008

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.

Headlight for gaseous discharge light (Bixenon), cornering light and automatic headlight range control

⇒ Side light and day driving light with LED

from March 2008
Notes:

For information concerning

♦ Position of relays and fuses
♦ Multi-pin connections
♦ Control units and relays
♦ Earth connections
⇒ List of Fitting Locations!

For information concerning

♦ Fault Finding Programs
⇒ guided fault finding

Audi TT

Current Flow Diagram

No. 40 / 1

Edition 08.2008

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.

8J0-040020408

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J

519

SF

1

5A

SF

2

40A

T11b/1

30

T2t/2

sw

4,0

1a

SF

7

40A

7

2a

ro

6,0

sw

4,0

20

SF

8

20A

8

8a

ro/li

0,5

7

ro/li

4,0

9

ro

4,0

ro

10,0

1

ro

4,0

2

B302

ro/gn

4,0

11

7a

ro/li

4,0

2

T11c/1

30

T8h/7

30

ro/gn

4,0

3

ro/li

0,5

1

B163

J

681

B1

✱

2/87

3/86

4/85

1/30

✱

B301

ro

16,0

SD

2

110A

✱

ro

16,0

SD

3

110A

✱

ro

4,0

ro

6,0

B299

B300

T2t/1

ro/gr

4,0

#

##

ro/gr

4,0

#

##

7

9

11

1

2

3

20

ws = white

sw = black

ro

= red

br

= brown

gn

= green

bl

= blue

gr

= grey

li

= purple

ge

= yellow

or

= orange

rs

= pink

Onboard supply control unit, terminal 15 voltage supply

relay 2, fuses

J519 Onboard supply control unit

J681 Terminal 15 voltage supply relay 2

SD2 Fuse 2 on fuse holder D

SD3 Fuse 3 on fuse holder D

SF1 Fuse 1 on fuse holder F

SF2 Fuse 2 on fuse holder F

SF7 Fuse 7 on fuse holder F

SF8 Fuse 8 on fuse holder F

T2t

2-pin connector, black connector L, on onboard supply control

unit

T8h 8-pin connector, black, connector F, on onboard supply control

unit

T11b 11-pin connector, black, connector A, on onboard power supply

control unit

T11c 11-pin connector, brown, connector D, on onboard power supply

control unit

B163 Positive connection 1 (15), in interior wiring harness

B299 Positive connection 3 (30), in main wiring harness

B300 Positive connection 4 (30), in main wiring harness

B301 Positive connection 5 (30), in main wiring harness

B302 Positive connection 6 (30), in main wiring harness

*

main fuse box, in luggage compartment, rear right, on the battery

**

Relay carrier on onboard power supply control unit, under left

dash panel

#

Coupé

##

Roadster

Audi TT

Current Flow Diagram

No. 40 / 2

Edition 08.2008

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.

8J0-040030408

15

16

17

18

19

20

21

22

23

24

25

26

27

28

J

519

T16a

/16

sw/ws

0,35

0 1 2 3

T10e/9

T16a

/14

ge/bl

0,35

T10e/2

T16a/1

gr/ge

0,35

T10e/3

T16a/8

ws/sw

0,35

T10e/1

T10e/6

31

br

0,5

E

1

SC

1

10A

SC

3

5A

1a

3

sw

4,0

14

1

sw/ge

0,5

40

3a

375

br

1,0

T11c/5

31

br

1,0

374

T11b/9

31

br

1,0

br

2,5

44

T8h/8

31

br

1,5

T6h/5

31

br

1,5

br

4,0

44

376

SC

4

5A

4

sw/ro

0,5

71

4a

SC

5

5A

5

gr/ge

0,5

59

5a

14

40

71

59

ws = white

sw = black

ro

= red

br

= brown

gn

= green

bl

= blue

gr

= grey

li

= purple

ge

= yellow

or

= orange

rs

= pink

Onboard supply control unit, light switch

E1

Light switch

J519 Onboard supply control unit

SC1 Fuse 1 on fuse holder C

SC3 Fuse 3 on fuse holder C

SC4 Fuse 4 on fuse holder C

SC5 Fuse 5 on fuse holder C

T6h 6-pin connector, connector J, on onboard supply control unit

T8h 8-pin connector, black, connector F, on onboard supply control

unit

T10e 10-pin connector, black, connector A, on light switch

T11b 11-pin connector, black, connector A, on onboard power supply

control unit

T11c 11-pin connector, brown, connector D, on onboard power supply

control unit

T16a 16-pin connector, black, connector E, on onboard power supply

control unit

44

Earth point, lower part of left A-pillar

374 Earth connection 9, in main wiring harness

375 Earth connection 10, in main wiring harness

376 Earth connection 11, in main wiring harness

Audi TT

Current Flow Diagram

No. 40 / 3

Edition 08.2008